An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.
Classification: Thrust ball bearings
NSN 6650-01-242-8086
NSN 5915-00-739-7331
NSN 6135-01-466-1153
NSN 5999-01-387-2128
NSN 5950-00-278-1201
NSN 4140-00-435-0436
NSN 6620-00-153-0982
NSN 5996-01-264-4881
NSN 6110-00-337-5146
NSN 5990-00-281-4164
NSN 5920-00-453-4377
NSN 5996-01-223-1663